Amazon.com has a Crest Whitestrips Premium Plus Dental Whitening System (40 ct) for $33.99 with Free Shipping.
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- nOne package containing 40 strips (20 for upper teeth; 20 for lower teeth)n
- Coated with a gel that contains hydrogen peroxide, the same enamel-safe ingredient dentists use for teeth whitening n
- Guaranteed to give you whiter teeth in just three days n
- Place the strip on your teeth for thirty minutes, twice a day for 10 days, then let your whiter smile and confidence dazzle the world n
- Clinically proven to give you whiter teeth for 18 months when worn just 30 minutes, twice a day, for 10 days nnn